package com.telcordia.cvas.rpn;

import static org.junit.Assert.*;

import org.junit.Test;

public class RpnCalculatorTest {
	@Test
	public void canSetXRegister() {
		RpnCalculator rpnCalculator = new RpnCalculator();
		rpnCalculator.setXRegister(42);
		assertEquals(42, rpnCalculator.getXRegister());
	}
	
	@Test
	public void initiallyHasZero() {
		RpnCalculator rpnCalculator = new RpnCalculator();
		assertEquals(0, rpnCalculator.getXRegister());
	}
}
